Combined conveyer and purifier for grain and the like.



A. FRISTER.

COMBINED GONVEYER AND PURIFIEB POE GRAIN AND THE LIKE.

APPLICATION FILED 00121, 1905.

Patented Dec. 8, 1908.

THE NORRIS PETERS co. WASHINGTON, a c.

AUGUST FRISTER, OF BREMEN, GERMANY.

COIEBINED CONVEYER AND PURIFIER FOR GRAIN AND THE LIKE.

Specification of Letters Patent.

Patented Dec. 8, 1908 Application filed October 21, 1905. Serial No. 283,729.

To all whom it may concern:

Be it known that I, AUeUs'r FRISTER, a subject of the German Emperor, and a resident of 20 Sonnenstrasse, in the city of Bremen, in the German Empire, have invented a certain new and useful Combined Conveyer and Purifier for Grain and the Like, of which the following is a specification.

In the transporting or conveying of material the particles of which are of small size, such as grain, coffee and the like from ships into store rooms and the like, it is sometimes very desirable to also remove dust, fungus, mold and other impurities from the material. This invention is intended to serve for the accomplishment of this purpose :The path through which the material is made to pass, is represented by a hose or tubing which consists of textile fabric or of some other flexible material and which is secured underneath a support in such a manner that it will be suspended below the same practically in a straight line instead of sagging and forming catenary lines, constituting bags between the several points of attachment. The material is run at one end into the hose or tubin which is arranged either in a horizonta line or slightly inclined. Motion is imparted to the material by rods beating in an inclined direction from below against the bottom side of the hose and consequently a ainst the material also which it is desire to move along.

A form of construction of an apparatus designed to carry out my invention is shown in the annexed drawing, making a part of this specification, and in which:

Figure 1 shows a vertical section on the line AB of Fig. 2; Fig. 1 shows a perspeotive view of the flexible tube or chute; Fig. 2 is a side view of the apparatus and Fig. 3 shows a plan view thereof.

The rods or beaters 0 may for instance be mounted, as indicated on the drawing, upon a pitman rod 1) arranged laterally with relation to the tubing or hose, so that the pitman b which is supported by several cranks will perform the whippin motion against the tubing together with 1ts beaters 0 upon the rotation of the pulley f. The action is increased by arranging a pitman of this description not only on one, but also on the other side of the tubing or hose, so that the beaters of one pitman alternate in their knocking'action against the underside of the hose or tubing with those of the other pitman, the material, which it is desired to convey, being thereby thrown forward in the interior of the tubing. In this manner the grain or other like material which has been fed into the tube or chute g at athrough a hopper or other suitable device will be fed forward and the particles will rub against each other in their continual jumping movement caused by the blows against the bottom of the chute and such grain or other product will be thoroughly aired and cooled. The action is increased by employing an undulatory band or apron d as shown in Figs. 1 and 1 of textile fabric or of sheet metal or the like, which is arranged underneath the top of the tubing or hose and immediately above the material, so that the jumping grains will rebound against the sagging curved undulatory parts of the apron. The dust and the like which in this manner becomes loosened, is carried off by a current of air, which is created in the tube or chute 9 over the product conveyed through the apparatus, by a suitable ventilating device, which may be either a blower or an exhauster, as shown in outline in Fig. 2, so that the particles are thoroughly cleaned and cooled.

It will be understood that the fabric out of which the chute or tube is formed, is imperforate, as it is not intended that any of the material conveyed through the chute or tube or dirt removed therefrom should pass through the interstices of the fabric.

What I claim and desire to secure by Letters Patent of the United States is 1. In a device of the class described, the combination with a tube or chute of flexible imperforate material of a plurality of gyrating beaters unconnected with the tube or chute, arranged below the same so as to impart blows against the lower outer surface of said flexible tube or chute and toward one end thereof.

2. In a device of the class described, the combination with a tube or chute of flexible imperforate material of a plurality of gyrating beaters unconnected with the tube or chute, arranged below the same so as to impart blows against the lower outer surface of said flexible tube or chute and toward one end thereof, and a ventilating apparatus adapted to cause a current of air through said tube or chute.-

3. In a device of the class described, the combination with a tube or chute of flexible imperforate material, of a flexible apron or band arranged in said tube or chute and a plurality of gyrating beaters unconnected with the tube or chute adapted to impart blows against the lower outer surface of the tube or chute.

4. In a device of the class described, the combination with a chute or tube of imperforate flexible material, of a plurality of horizontal beaters fixed upon a horizontal rod gyrated by a crank motion mounted underneath the tube or chute and adapted to impart blows against the lower outer surface N of the chute or tube when moved up- Ward. Y

5. In a device of the class described, a tube or chute of flexible imperforate material, of a flexible apron or band arranged in said tube or chute, a plurality of beaters fixed upon a gyrating rod mounted underneath the tube or chute and adapted to impart blows against the lower outer surface of the flexible tube or chute, and a vent1lating apparatus.

In witness whereof I have hereunto set my hand in presence of two witnesses.

AUG. FRISTER. lVitnesses FR. I-IoYERMANN, F. REIoH. 

